45381966 has 16 divisors (see below), whose sum is σ = 103730304. Its totient is φ = 12966264.

The previous prime is 45381953. The next prime is 45381979. The reversal of 45381966 is 66918354.

It is an interprime number because it is at equal distance from previous prime (45381953) and next prime (45381979).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1080523 = 45381966 / (4 + 5 + 3 + 8 + 1 + 9 + 6 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540220 + ... + 540303.

It is an arithmetic number, because the mean of its divisors is an integer number (6483144).

Almost surely, 2^45381966 is an apocalyptic number.

45381966 is an abundant number, since it is smaller than the sum of its proper divisors (58348338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45381966 is a wasteful number, since it uses less digits than its factorization.

45381966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080535.

The product of its digits is 155520, while the sum is 42.

The square root of 45381966 is about 6736.6138378268. The cubic root of 45381966 is about 356.6928758605.

The spelling of 45381966 in words is "forty-five million, three hundred eighty-one thousand, nine hundred sixty-six".